GW Instek APS-7000 Series, APS-7100, APS-7050, APS-7300, APS-7200 User Manual

Programmable AC Power Source

APS-7000 Series

USER MANUAL

ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.

The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
rights to change specification, equipment, and maintenance
procedures at any time without notice.

Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

Table of Contents

Table of Contents

SAFETY INSTRUCTIONS ................................................... 4

GETTING STARTED .......................................................... 8

APS-7000 Series Overview ...................... 9

Appearance .......................................... 14

OPERATION .................................................................. 26

Set Up .................................................. 28

Basic Operation ................................... 60

Advanced Settings ............................... 82

Miscellaneous ...................................... 88

Trigger ................................................. 95

Preset Settings ................................... 100

Arbitrary Waveform Function ............. 104

Test Mode Function ........................... 112

REAR PANEL SIGNAL OUTPUTS .................................... 149

COMMUNICATION INTERFACE .................................... 153

Interface Configuration ...................... 154

FAQ .............................................................................. 175

APPENDIX .................................................................... 177

Firmware Update ............................... 177

APS-7000 Default Settings ................. 179

APS-7000 Specifications ..................... 181

APS-7000 Dimensions ........................ 187

Declaration of Conform ity .................. 191

INDEX .......................................................................... 192

3

APS-7000 Series User Manual

WARNING

Warning: Identifies conditions or practices that
could result in injury or loss of life.

CAUTION

Caution: Identifies conditions or practices that
could result in damage to the APS-7000 or to other
properties.

DANGER High Voltage

Attention Refer to the Manual

Protective Conductor Terminal

Earth (ground) Terminal

SAFETY INSTRUCTIONS

This chapter contains important safety
instructions that you must follow during
operation and storage. Read the following before
any operation to ensure your safety and to keep
the instrument in the best possible condition.

Safety Symbols

These safety symbols may appear in this manual or on the
instrument.

4

SAFETY INSTRUCTIONS

Do not dispose electronic equipment as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased.

General
Guideline

CAUTION

 Do not place any heavy object on the APS-7000.
 Avoid severe impact or rough handling that

leads to damaging the APS-7000.

 Do not discharge static electricity to the APS-

7000.

 Use only mating connectors, not bare wires, for

the terminals.

 Do not block the cooling fan opening.
 Do not disassemble the APS-7000 unless you are

qualified.

(Measurement categories) EN 61010-1:2010 specifies the
measurement categories and their requirements as follows. The
APS-7000 doesn’t fall under category II, III or IV.

 Measurement category IV is for measurement performed at the

source of low-voltage installation.

 Measurement category III is for measurement performed in the

building installation.

 Measurement category II is for measurement performed on the

circuits directly connected to the low voltage installation.

 0 is for measurements performed on circuits not directly

connected to Mains.

Power Supply

WARNING

 AC Input voltage range:

115/230 Vac ± 15% (APS-7050, APS-7100)

230 Vac ± 15% (APS-7200, APS-7300)

 Frequency: 50/60Hz
 To avoid electrical shock connect the protective

grounding conductor of the AC power cord to
an earth ground.

Safety Guidelines

5

APS-7000 Series User Manual

Cleaning the APS­7000

 Disconnect the power cord before cleaning.
 Use a soft cloth dampened in a solution of mild

detergent and water. Do not spray any liquid.

 Do not use chemicals containing harsh material

such as benzene, toluene, xylene, and acetone.

Operation
Environment

 Location: Indoor, no direct sunlight, dust free,

almost non-conductive pollution (Note below)

 Relative Humidity: 20%~ 80%, no condensation
 Altitude: < 2000m
 Temperature: 0°C to 40°C

(Pollution Degree) EN 61010-1:2010 specifies the pollution degrees
and their requirements as follows. The APS-7000 falls under degree

2.

Pollution refers to “addition of foreign matter, solid, liquid, or

gaseous (ionized gases), that may produce a reduction of dielectric
strength or surface resistivity”.

 Pollution degree 1: No pollution or only dry, non-conductive

pollution occurs. The pollution has no influence.

 Pollution degree 2: Normally only non-conductive pollution

occurs. Occasionally, however, a temporary conductivity caused
by condensation must be expected.

 Pollution degree 3: Conductive pollution occurs, or dry, non-

conductive pollution occurs which becomes conductive due to
condensation which is expected. In such conditions, equipment
is normally protected against exposure to direct sunlight,
precipitation, and full wind pressure, but neither temperature
nor humidity is controlled.

Storage
environment

 Location: Indoor
 Temperature: -10°C to 70°C

 Relative Humidity: ≤80%, no condensation

Disposal

Do not dispose this instrument as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased. Please make sure
discarded electrical waste is properly recycled to
reduce environmental impact.

6

SAFETY INSTRUCTIONS

Green/ Yellow:

Earth

Blue:

Neutral

Brown:

Live (Phase)

Power cord for the United Kingdom

When using the instrument in the United Kingdom, make sure the
power cord meets the following safety instructions.

NOTE: This lead/appliance must only be wired by competent persons

WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with the
following code:

As the colours of the wires in main leads may not correspond with
the coloured marking identified in your plug/appliance, proceed
as follows:

The wire which is coloured Green & Yellow must be connected to
the Earth terminal marked with either the letter E, the earth symbol

or coloured Green/Green & Yellow.

The wire which is coloured Blue must be connected to the terminal
which is marked with the letter N or coloured Blue or Black.

The wire which is coloured Brown must be connected to the
terminal marked with the letter L or P or coloured Brown or Red.

If in doubt, consult the instructions provided with the equipment
or contact the supplier.

This cable/appliance should be protected by a suitably rated and
approved HBC mains fuse: refer to the rating information on the
equipment and/or user instructions for details. As a guide, a cable
of 0.75mm2 should be protected by a 3A or 5A fuse. Larger
conductors would normally require 13A types, depending on the
connection method used.

Any exposed wiring from a cable, plug or connection that is
engaged in a live socket is extremely hazardous. If a cable or plug is
deemed hazardous, turn off the mains power and remove the cable,
any fuses and fuse assemblies. All hazardous wiring must be
immediately destroyed and replaced in accordance to the above
standard.

7

APS-7000 Series User Manual

APS-7000 Series Overview ......................................... 9

Series lineup ........................................................................................ 9

Operating Area ................................................................................... 9

Main Features ................................................................................... 11

Accessories ........................................................................................ 12

Appearance .............................................................. 14

Front Panel ........................................................................................ 14

Rear Panel .......................................................................................... 19

Status Bar Icons ................................................................................ 24

GETTING STARTED

This chapter describes the power source in a
nutshell, including its main features and front /
rear panel introduction.

8

GETTING STARTED

Model name

Max. Output Current

Power Rating

Output Voltage

APS-7050

4.2A/2.1A

500VA

0~310.0 Vrms

APS-7100

8.4A/4.2A

1000VA

0~310.0 Vrms

APS-7200

16.8A/8.4A

2000VA

0~310.0 Vrms

APS-7300

25.2A/16.8A

3000VA

0~310.0 Vrms

Voltage (V)

Current (A)

0

1

2

0

3

4

5

100

200

300

400 500

600

120 155 240

310 480

600

4.2

3.23

2.1

1.62

1.05

0.83

APS-7050 Output Operating Area

155V Range 310V Range 600V Range

(APS-003 Option)

APS-7000 Series Overview

Series lineup

The APS-7000 series consists of 4 models, the APS-7050, APS-7100,
APS-7200 and APS-7300, differing only in capacity. Note that
throughout the user manual, the term “APS-7000” refers to any of
the models, unless stated otherwise.

Operating Area

9

APS-7000 Series User Manual

Voltage (V)

Current (A)

0

2

4

0

6

8

10

100

200

300

400 500

600

120 155 240

310 480

600

8.4

6.45

4.2

3.23

2.1

1.67

155V Range 310V Range 600V Range

APS-7100 Output Operating Area

(APS-003 Option )

Voltage (V)

Current (A)

0

5

10

0

15

20

100

200

300

400 500

600

120 155 240

310 480

600

16.8

12.9

8.4

6.45

4.2

3.33

155V Range 310V Range 600V Range

APS-7200 Output Operating Area

(APS-003 Option )

10

Voltage (V)

Current (A)

0

5

10

0

15

20

25

100

200

300

400 500

600

120 155 240

310 480

600

25.2

19.4

12.6

9.7

6.3

5.0

155V Range 310V Range 600V Range

APS-7300 Output Operating Area

(APS-003 Option )

Main Features

Performance

 Low output ripple and noise
 Excellent and feature-rich measurement

capacity

 Standard maximum output voltage is 310Vrms
 Maximum output voltage and frequency of

600Vrms(APS-003 Option)/1000Hz(APS-004
Option)

GETTING STARTED

11

APS-7000 Series User Manual

Features

 OCP, OPP and OTP protection
 Variable voltage, frequency and current limiter
 Sequence and simulation function
 Large 4.3 inch TFT panel
 Globally adjustable power inlet not restricted by

the power supply environment

 USB interface is equipped as standard with the

ability to save and recall setup files.

 Only 88mm (2U) case height (APS-7050 and

APS-7100 models only).

Interface

Standard:

 Ethernet port
 USB host
 USB CDC (APS-7200 and APS-7300 models

only)

Optional:

 GPIB
 RS-232 / USB CDC (APS-7050 and APS-7100

models only)

 RS-232 (APS-7200 and APS-7300 models only)

Standard
Accessories

Part number

Description

CD ROM

User manual,
programming manual

82GW1SAFE0M*1

Safety guide

Region dependent

Type I Power cord
(APS-7050)

Region dependent

Type II Power cord
(APS-7100)

Accessories

12

GETTING STARTED

Region dependent

Type III Power cord
(APS-7200, APS-7300)

62PS-7K0SC701 x1
5302-01613001 x1

Mains terminal cover set
(APS-7050)

62PS-7K0SC401 x1
5302-01613001 x2

Mains terminal cover set
(APS-7100)

GTL-123

Test leads: 1x red, 1x black

Optional
Capacity

Part number

Description

APS-003

Output Voltage Capacity:
0 ~ 600Vrms

APS-004

Output Frequency Capacity:
45 ~ 1000Hz

Optional
Accessories

Part number

Description

GRA-423

APS-7050 and APS-7100
rack mount kit

GRA-429

APS-7200 rack mount kit

GRA-430

APS-7300 rack mount kit

APS-001

GPIB interface card

APS-002

RS-232 / USB CDC
interface card (APS-7050
and APS-7100 only)

APS-007

RS-232 interface card (APS­7200 and APS-7300 only)

GPW-004

Power Cord 8mm2/3C, 3m

Max Length, 105°C,

RNYBS8-6*3P, RNYB8­8*3P

Download

Name

Description

gw_aps.inf

USB driver

13

APS-7000 Series User Manual

APS-7050

AC Power Source

Display

Programmable

F 1

F 2

F 3

F 4

Output

: Long Push

Menu Test Preset

V

Local

Off Phase

On Phase

0

1

4

7

2

5

8

3

6

9

V-Limit F-Limit IPK-Limit

F I rms

Cancel

Shift

Range

Enter

Lock

ALM CLR

IPK CLR

Unlock

Surge / Dip

Ramp

TriggerARB

USB A port

Power
switch

Front voltage
output socket

Menu, Test,
Preset keys

LCD
display

Function keys

Display
mode key

Arrow keys,
Scroll wheel

Voltage, Frequency,
Current setting and limit

Keypad

Range, Shift, Cancel,
Enter, Lock keys

Output key

Caster

Adjuster

foot

Caster

Appearance

Front Panel

APS-7050, APS-7100

APS-7200 APS-7300

14

GETTING STARTED

Item

Description

Power Switch

Turns on the mains power.

Front Voltage
Output Socket

Neutral

GND

Line

Output voltage
terminal using a
regional universal
plug. There is a Euro
and a Universal
regional plug.

CAUTION

Maximum allowable output voltage
and current are 250Vrms and
15Arms.

For voltages exceeding 250Vrms or
current over 15Arms, please use the
rear output terminal.

Universal and EURO region plugs
socket must be factory installed.

USB A Port

The USB port is used for data
transfers and upgrading software.

LCD Screen

Displays the measured values or
menu system.

Display Mode
Select Key

Display

Selects between Standard mode
and Simple mode.

15

APS-7000 Series User Manual

Function Keys

F 1

Assigned to the functions
displayed on the right-hand side
of the screen.

Menu Key

Menu

Enters the Main menu or goes
back to one of the display modes.

Test Key

Test

Puts the instrument into the
Sequence, Simulation and
Program Control mode.

Preset Key

Preset

Puts the instrument into Preset
mode.

Arrow Keys

The arrow keys are used to select
the digit power of a value that is
being edited.

V

V

V-Limit

Used for setting the output
voltage.

V-Limit

(Shift + V)

Used for setting the output voltage
limit value.

F

F

F-Limit

Used for setting the output
frequency.

F-Limit

(Shift + F)

Used for setting the output
frequency limit value.

I rms

I rms

IPK-Limit

Used for setting the maximum
output current.

IPK-Limit

(Shift + I rms)

Used to set the peak output
current limit value.

Range Key

Range

Switches between the 155V, 310V
and 600V ranges (the 600V range
is an option).

Scroll Wheel

Used to navigate menu items or
for incrementing/decrementing
values one step at a time.

16

GETTING STARTED

Lock Key

Lock

Unlock

Locks the number pad to prevent
accidentally changing panel
settings.

Unlock Key

(Long press)

Disables the key lock.

Enter Key

Enter

Confirms selections / settings

Cancel Key

Cancel

Clears entries that are made in the
number entry dialog when a value
is edited using the arrow keys or
the scroll wheel.

The Cancel key can also be used to
cancel function setting menus or
dialogs.

Shift Key

Shift

Turns on the shift state, which
enables shortcut operations.

Output Key

Output

Turns the output on or off.

Number Pad

0

142

5

8

3

6

9

Lock

Unlock

7

On Phase Surge / Dip IPK CLR

Off Phase Ramp ALM CLR

ARB Trigger

Local

Used to enter values.

Local Mode

(Shift + 0)

Switches operation back to local
mode from remote mode.

ARB Mode

(Shift + 1)

Sets the ARB function.

Trigger Mode

(Shift + 2)

Sets the JI port trigger behavior on
the rear panel.

Off Phase

(Shift + 4)

Sets the off phase for the output
voltage.

RAMP

(Shift + 5)

Quick settings for Ramp control.

ALM CLR

(Shift + 6)

Clears alarms.

On Phase

(Shift + 7)

Sets the on phase for the output
voltage.

17

APS-7000 Series User Manual

Surge/Dip

(Shift + 8)

Quick settings for Surge/Dip
control.

IPK CLR

(Shift + 9)

Clears peak current hold.

18

Rear Panel

SYNC

Signal Output LAN

OUTPUT INPUT

L N N L

600Vac MAX. 115 / 230V 15%

50 / 60Hz

3.6kVA MAX.

Out On / Off

COM

J1

Trigger Out

Trigger In

115 / 230V 15%

50 / 60Hz

1.8kVA MAX.

SYNC

SER. NO. LB

L N

600Vac MAX.

Signal Output

Trigger Out

Trigger In Out On / Off

COM

LAN

J1

OUTPUT

Fan

GPIB

Line voltage input

GPIB

RS232

RS-232/

USB Device

Sync

Signal Output Rear panel voltage

output terminal

Remote control Ethernet port

Line voltage input

APS-7050

APS-7100

Opt. int. port

GETTING STARTED

19

APS-7000 Series User Manual

Remote control

Ethernet port

Line voltage input

APS-7200

GPIB

GPIB

RS232

RS-232

Fan

Sync

Signal Output

Rear panel voltage
output and
sensing terminals

Optional
interface
port

Circuit
breaker
(current)

USB port

20

Remote control

Ethernet port

Line voltage input

APS-7300

GPIB

GPIB

RS232

RS-232

Fan

Sync

Signal Output

Rear panel voltage

output and
sensing terminals

Optional
interface

port

Circuit

breaker
(current)

USB port

GETTING STARTED

21

APS-7000 Series User Manual

Line Voltage
Input

APS-7050

115 / 230V 15%

50 / 60Hz

1.8kVA MAX.

Voltage Input: 115/230±15% VAC;
Line frequency: 50Hz/60 Hz
(Automatically switchable)

APS-7100

OUTPUT INPUT

L N N L

Voltage Input: 115/230±15%
VAC ; Line frequency:
50Hz/60 Hz (Automatically
switchable)

APS-7200 & 7300

N L

Voltage Input: 230±15% VAC ;
Line frequency: 50Hz/60 Hz

Rear Voltage
Output Socket

Output voltage terminal.

APS-7050

L N

OUTPUT

APS-7100

OUTPUT INPUT

L N N L

APS-7200 & 7300

L N

Sync Output
Socket

SYNC

BNC socket. This socket will output a
signal of approximately 10V when the
output is on.

Signal Output

Signal output

APS-7050
APS-7100

APS-7200
APS-7300

Connector for monitoring PASS, FAIL
and PROCESSING output signals
when using the Program mode.

Remote Control

Trigger Out

Trigger In

Out On / Off

COM

APS-7200 and APS-7300

Trigger Out

Trigger In Out On / Off

COM

APS-7050 and APS-7100

Connector for controlling the
TRIGGER IN, TRIGGER OUT and
OUT ON/OFF states.

22

GETTING STARTED

Ethernet Port

LAN

The Ethernet port is used for remote
control and digital monitoring from a
PC.

Optional
Interface Slot

Optional GPIB communication, RS-232/USB B
communication and RS-232 communication.

Circuit breaker
(APS-7200,
APS-7300 only)

I / O

Main power circuit (current) breaker

Rating : 40A (APS-7200)
63A (APS-7300)
Note: Check the status of the power

breaker before power-on the APS-7200
or APS-7300.

FAN

Temperature controlled fan.

Remote sense
(APS-7200,
APS-7300 only)

Compensation of the load wire drop.

23

APS-7000 Series User Manual

Status bar

ARB

/

Indicates if the output is ON or OFF.

Indicates the output power as a percentage of full
scale.

Indicates that the Surge/Dip function is active.

Indicates that the Ramp function is active.

The alarm icon will appear on the status bar
when one of the protection functions are tripped.
Applies to Over Power, Over Irms, Over Ipeak
and Over Temperature protection.

Indicates that the APS-7000 is in remote mode.

Indicates that a USB drive is detected in the front
panel host port.

Indicates that the LAN interface is activated.

Status Bar Icons

24

GETTING STARTED

Indicates that the panel lock is active.

ARB

Indicates that the ARB function is active.

25

APS-7000 Series User Manual

Set Up ..................................................................... 28

Line Voltage Removal and Installation for APS-7100 .............. 28

Filter Installation .............................................................................. 31

Power Up ........................................................................................... 33

Output Terminals ............................................................................. 34

Wire gauge considerations .............................................................. 39

Installing the Optional Hardware Modules ................................. 41

Installing Optional Software Modules .......................................... 43

Using the Rack Mount Kit ............................................................. 48

How to Use the Instrument ........................................................... 50

Reset to Default Settings ................................................................ 54

View System Version and Serial Number .................................... 55

LCD Configuration.......................................................................... 56

USB Driver Installation .................................................................. 57

Basic Operation ....................................................... 60

Setting the Voltage Range ............................................................... 60

Setting the Voltage Limit ................................................................ 61

Setting the Output Voltage............................................................. 62

Setting the Frequency Limit ........................................................... 64

Setting the Output Frequency........................................................ 65

Setting the Peak Current Limit ...................................................... 66

Setting the Current RMS Level ...................................................... 70

Setting the On/Off Phase .............................................................. 73

Alarm Clear ....................................................................................... 74

Display Modes .................................................................................. 75

Panel Lock ......................................................................................... 77

Turning the Output On .................................................................. 78

Using the remote sense (APS-7200 and APS-7300 only) ......... 79

Local Sense ........................................................................... 79

Remote Sense ...................................................................... 80

Advanced Settings ................................................... 82

Surge/Dip Control .......................................................................... 82

Ramp Control ................................................................................... 85

Miscellaneous.......................................................... 88

OPERATION

26

OPERATION

T Ipeak, hold..................................................................................... 88

Power ON Output ........................................................................... 90

Buzzer ................................................................................................ 91

SCPI Emulation ............................................................................... 92

Remote Sense (APS-7200 and APS-7300 only) .......................... 93

Trigger ..................................................................... 95

Trigger Control Settings ................................................................. 95

Preset Settings .......................................................100

Save Preset Settings to Local Memory ....................................... 100

Load Preset Settings to Local Memory ...................................... 101

Manage Preset Settings ................................................................. 102

Arbitrary Waveform Function ..................................104

ARB Mode Overview .................................................................... 105

Selecting an ARB Waveform ....................................................... 109

Test Mode Function ................................................112

Simulate Mode Overview ............................................................. 114

Simulate Settings ............................................................................ 118

Save a Simulation to Local Memory ........................................... 121

Recall a Simulation from Local Memory ................................... 121

Manage Simulation Settings ......................................................... 122

Running a Simulation .................................................................... 124

Sequence Mode Overview ............................................................ 126

Sequence Settings ........................................................................... 130

Save a Sequence to Local Memory ............................................. 134

Recall a Sequence from Local Memory...................................... 134

Manage Sequence Settings ............................................................ 135

Running a Sequence ...................................................................... 137

Program Mode Overview ............................................................. 139

Save a Program to Local Memory............................................... 146

Recall a Program from Local Memory ....................................... 146

Manage Program Settings ............................................................. 147

27

APS-7000 Series User Manual

Background

The APS-7100 is equipped with an input power
terminal that can accept 115V/230V ± 15%. To
connect or replace the power cord (GW Instek
part number 4300-31000101), use the procedure
below:

Warning

The following procedure should only be attempted
by competent persons.

Ensure the AC power cord is not connected to
power.

Removal

1. Turn off the power

switch.

1

APS-7100

2. Unscrew the power cord protective sheath on

the rear output socket.

3. Remove the 2 screws holding the power cord

cover and remove.

Set Up

Line Voltage Removal and Installation for APS-7100

28

OPERATION

APS-7100

3

2

4. Remove the AC

power cord wires.

4

CAUTION

The power line inputs for the APS-7100 are on the
outer cluster of terminals.

The terminals to the inner of the panel are the rear
panel outputs.

Installation

1. Connect the AC power cord wires to the AC

input terminals.

 White/Blue  Neutral (N)
 Green/Green-yellowGND ( )
 Black/Brown  Line (L)

29

APS-7000 Series User Manual

APS-7100

OUTPUT INPUT

L N N L

115 / 230V 15%

Line

Neutral

Ground

2. Re-install the power cord cover.

3. Screw the power cord sheath back onto the

cover.

APS-7100

2

3

30

Background

The APS-7200/7300 has a filter (GW Instek part
number, 57RG-30B01801) that must first be
inserted under the control panel before
operation.

Steps

1. Pull outward as indicated

in the arrow to detach the
snap.

See below
for details

2. Remove the cover

3. Remove the screws

4. Move the plastic frame in

the direction indicated by
the arrow

OPERATION

Filter Installation

31

APS-7000 Series User Manual

5. Remove the plastic frame.

6. Replace the filter with a

new one.

7. The unit is now ready to power up.

Note

Please clean regularly to avoid damaging the
internal components of the machine

Warning

The following procedure should only be attempted
by competent persons.

Ensure the AC power cord is not connected to
power.

32

Power Up

Steps

1. Socket type (APS-7050):

Connect the power cord
to the rear panel socket.

Input Power Terminal
(APS-7100, 7200 & 7300):
Connect the power cord to
the input power terminals.

APS-7200 & 7300,
see page 22,

APS-7100,
see page 28.

2. Press the POWER key. The splash screen will

appear momentarily before the continuous
mode screen appears with the settings loaded.

CAUTION

The power supply takes around 10 seconds to fully
turn on and shutdown.

Do not turn the power on and off quickly.

OPERATION

33

APS-7000 Series User Manual

Background

The output terminals can be output from either
the front panel or from the rear panel. The
outputs are limited to 4.2A/2.1A (APS-7050),

8.4A/4.2A (APS-7100), 16.8A/8.4A (APS-7200)
or 25.2A/12.6A (APS-7300).

Supported plugs

Multi-region terminal Socket

Supported Standards

IEC, North America, Japan.

EURO CEE type universal plug

WARNING

Dangerous voltages. Ensure that the power to the
instrument is disabled before handling the power
supply output terminals. Failing to do so may lead
to electric shock.

CAUTION

For the front panel output, the maximum output
voltage is 250VAC and current is 10A.

Front Panel
Output
Connection

1. The front panel has a multi-region power

socket depending on the socket type.

2. Insert the plug from the DUT into the socket.

(APS-7050 or APS­7100 shown)

EURO CEE socket

IEC North America, Japan

Output Terminals

34

OPERATION

WARNING

Dangerous voltages. Ensure the output is off
before unplugging the plug from the front panel
socket.

3. Turn the power on. The AC power supply is

now ready to power the DUT.

Rear Panel Output
Connection

The rear panel output is used to supply higher
power DUTs. The rear panel output connection
is similar to the universal rear panel line input
connection on the APS-7100, APS-7200 or APS-

7300.

1. Disconnect the unit from the mains power

socket and turn the power switch off.

2. Unscrew the power cord protective sheath

(APS-7050 and APS-7100).

3. Remove the 2 screws holding the power cord

cover and remove (APS-7050 and APS-7100).

APS-7050

3

2

35

APS-7000 Series User Manual

APS-7100

3

2

CAUTION

For the APS-7100, there is a single bank for the
input and output terminals. Ensure the correct
terminals are connected. The APS-7050, APS-7200
and APS-7300 have a dedicated bank of output
terminals on the rear panel.

Installation

4. Connect the output AC power cord wires to

the AC output terminals.

 Black  Neutral (N)
 Green  GND ( )
 Red  Line (L)

APS-7100

OUTPUT INPUT

L N N L

115 / 230V 15%

Line

Neutral

Ground

Ground

Neutral

Line

APS-7100 shown. The input terminals are already
connected and shows which output terminals are
to be connected.

36

OPERATION

APS-7050, APS­7200 and APS­7300

Line

Neutral

Ground

L N

OUTPUT

APS-7050 shown.

5. Re-install the power cord cover (APS-7050

and APS-7100).

6. Screw the power cord sheath back onto the

cover (APS-7050 and APS-7100).

APS-7050

5

6

37

APS-7000 Series User Manual

APS-7100

5

6

7. Turn the power on. The AC power supply is

now ready to power the DUT.

Note

Grounded Neutral Output:
APS-7000 allows for a grounded return on the neutral
output.
It is suit for the medical industry that required
between ground with neutral is 0V essentially.
And possible to mitigate ground loops that is ideal for
reduce ground noise and isolate sensitive equipment
from the effects of ground loops.

WARNING

Because the neutral has been referenced to the
chassis ground, be careful electric shock by yourself.

38

OPERATION

Background

Before connecting the output terminals to a
load, the wire gauge of the cables should be
considered.

It is essential that the current capacity of the
load cables is adequate. The rating of the cables
must equal or exceed the maximum current
rated output of the instrument.

Recommended
wire gauge

Wire Gauge

Nominal Cross
Section

Maximum Current

20

0.5 9

18

0.75

11 18

1

13 16

1.5

18 14

2.5

24 12

4

34 10

6

45

8 10

64

6 16

88 4

25

120 2

32

145 1

50

190 00

70

240 000

95

290 0000

120

340

The maximum temperature rise can only be 60
degrees above the ambient temperature. The
ambient temperature must be less than 30
degrees.

To minimize noise pickup or radiation, the
load wires and remote sense wires should be
twisted-pairs of the shortest possible length.
Shielding of the sense leads may be necessary
in high noise environments. Where shielding is

Wire gauge considerations

39

APS-7000 Series User Manual

used, connect the shield to the chassis via the
rear panel ground screw. Even if noise is not a
concern, the load and remote sense wires
should be twisted-pairs to reduce coupling,
which might impact the stability of the power
supply. The sense leads should be separated
from the power leads.

40

OPERATION

Background

There are a number of optional modules that
can be installed for remote control.

Optional Modules

APS-001

GPIB Interface card

APS-002

RS-232/USB CDC interface card

APS-007

RS-232 interface card

WARNING

Dangerous voltages. Ensure that the power to the
instrument is disabled before handling the power
supply output terminals. Failing to do so may lead
to electric shock.

CAUTION

Ensure the power is off before installing any of the
optional modules.

Installation

1. Turn off the power

switch.

1

2. Unscrew the two screws holding the options

panel plate.

2

APS-7100 shown

Installing the Optional Hardware Modules

41

APS-7000 Series User Manual

3. Slide the module PCB onto the rails on the

inside of the module slot.

4. Secure the module with the screws that were

removed from step 2.

4

3

APS-7100 shown

5. The module will be recognized upon startup.

42

OPERATION

Background

The APS-003 and APS-004 are optional software
modules that upgrade the voltage limit and
frequency limit to 600Vrms and 1000Hz,
respectively. Like the firmware, the software
modules can be upgraded using the USB A port
on the front panel. See your local distributor or
GW Instek to purchase these options.

WARNING

The APS-003 and APS-004 software module license
keys have been updated and there are now two
license key file formats in use:

- The old license keys were tied to the serial

number of the APS-7000 unit. The license key
files used XXXXXX.lis formatting, where
XXXXXX was the serial number of the unit the
license key is intended for.

- The new license keys are no longer tied to

serial numbers. These new license key files use
XXXXXX.lic formatting (APS003.lic &
APS004.lic). The new license keys can be
exported and transferred to different units.

The old and new license keys are to be used with
the following equipments and restrictions:

- Old license key (*.lis): can only be used with

the APS-7050 and the APS-7100 with a
firmware version below V1.08.

- New license key (*.lic): APS-7050 and APS-

7100 with a V1.08 firmware version or above;
any APS-7200; any APS-7300.

Note

To upgrade APS-003 or APS-004, it is recommended to

Installing Optional Software Modules

43

APS-7000 Series User Manual

upgrade the software version to the latest one.
For software, please contact GW or local distributors.

OLD LICENCE KEY INSTALLATION (XXXXXX.LIS format)

Note

This installation guide only applies to APS-7050
and APS-7100 equipments with a firmware version
below V1.08.

These options require your serial number. The
older license keys are not longer available for
purchase.

The serial number on the APS unit must match the
XXXXXXX.lis filename, or the upgrade will fail.

See page 55 for instructions on how to view your
serial number

Steps

1. Insert the USB flash drive into the USB port on

front panel of the APS-7000.

 The USB drive should include the

XXXXXX.lis file in a directory named

“gw”(USB\gw:).

2. Press the Menu key. The Menu

setting will appear on the display.

Menu

3. Use the scroll wheel to go to item 11, Special

Function and press Enter.

4. Key in the password when prompted and then

press Enter.

 The password is “5004”.

5. Go to Item 5, Add New Module and press Enter.

44

OPERATION

6. If the upgrade is successful, “Vlimit Enabled”

or “Flimit Enabled” will appear on the screen.

Vlimit option successfully upgraded

Invalid License

7. If the upgrade is not successful, “Invalid

License” will be displayed. Check to make

sure the serial number and the XXXXXX.lis
filename match.

NEW LICENCE KEY INSTALLATION (XXXXXX.LIC format)

Note

This installation guide only applies to firmware
versions 1.08 or above on APS-7050, APS-7100,
APS-7200 and APS-7300 equipments. Do not
attempt this installation procedure with older
firmware.

The license keys (APS003.lic & APS004.lic), can be
exported and transferred to another APS-7000
power supply of the same model at anytime. A
license key can only be used with one machine at a
time.

Steps

1. Insert the USB flash drive into the USB port on

front panel of the APS-7000.

 The USB drive should include the APS003.lic

or APS004.lic file in a directory named

“gw”(USB\gw:).

2. Press the Menu key. The Menu

setting will appear on the display.

Menu

45

APS-7000 Series User Manual

3. Use the scroll wheel to go to item 11, Special

Function and press Enter.

4. Key in the password when prompted and then

press Enter.

 The password is “5004”.

5. Go to Item 5, Add New Module and press Enter.

6. If the upgrade is successful, “Vlimit Enabled”

or “Flimit Enabled” will appear on the screen.

7. Reset the power to the unit when prompted.

Invalid License

8. If the upgrade is not successful, “Invalid

License” will be displayed.

NEW LICENCE KEY EXPORT (XXXXXX.LIC format)

Note

This guide will EXPORT the license key back to the
USB flash drive* so that the license key can be
installed on a different unit.

*The same USB flash drive that originally
contained the *.lic license key must be used when
exporting the license key.

Steps

1. Insert the USB flash drive into the USB port on

front panel of the APS-7000.

46

OPERATION

2. Press the Menu key. The Menu

setting will appear on the display.

Menu

3. Use the scroll wheel to go to item 11, Special

Function and press Enter.

4. Key in the password when prompted and then

press Enter.

 The password is “5004”.

5. Press F1 Export APS-003 or F2 Export APS-004.

6. Reset the power to the unit when prompted.

7. The APS003.lic or APS004.lic will now be in

the GW directory of the USB flash drive.

Warning

You can only export one license key at a time.

You cannot have two license keys on the same USB
drive.

You cannot copy a license key to another USB
drive. Trying to do so will cause the file to be lost or
to be mismatched.

47

APS-7000 Series User Manual

Background

The APS-7050, APS-7100, APS-7200 and
APS7300 have optional Rack Mount kits:

Model

Rack Mount kit part
number

APS-7050 & 7100

GRA-423

APS-7200

GRA-429

APS-7300

GRA-430

The APS-7050 and APS-7100 are designed to fit
into a 2U rack height. The APS-7200 is
designed to fit into a 7U rack height. The APS­7300 is designed to fit into a 9U rack height.
Please see your distributor for further rack
mount details.

Rack mount
diagram (APS­7050 or 7100)

Using the Rack Mount Kit

48

OPERATION

Rack mount
diagram (APS-

7200)

Rack mount
diagram (APS-

7300)

CAUTION

Ensure adequate ventilation is provided when
using the rack mount. Ensure at a gap of at least
50mm is given for the side air intakes. Failure to
do so may cause the instrument to overheat.

49

APS-7000 Series User Manual

Background

The APS-7000 AC power supplies generally
use the scroll wheel, arrow keys and Enter keys
to edit numerical values or to select menu
options.

Menu navigation is performed using the menu
keys and function keys on the front panel.

The following section will explain some of
these concepts in detail.

Selecting Menu
Items

1. Turn the scroll wheel to select

parameters in menus and lists.
The selected parameter will be
highlighted in orange. The scroll
wheel is also used to
increment/decrement setting
values.

2. Press the Enter key to edit the

parameter or to enter the selected
menu.

Enter

How to Use the Instrument

50

OPERATION

Example

Selected parameter

The following is an example of the menu list that
appears when the Menu key is pressed.

Using the Keypad
to edit parameter
values

When editing a value the keypad can be used
to directly enter the desired value.

1. Type the value of the

parameter using the
keypad.

0

1

4

2

5

8

3

6

9

Lock

Unlock

7

On Phase Surge / Dip IPK CLR

Off Phase Ramp ALM CLR

ARB Trigger

Local

2. Press the Enter key to confirm the

edit.

Enter

Example

Parameter

51

APS-7000 Series User Manual

Using the Arrow
Keys and Scroll
wheel to edit
parameter values

Use the arrow keys to select a digit power and
then use the scroll wheel to edit the value by
that power.

1. Use the arrow keys to move the

cursor to the digit of the desired
power.

2. Turn the scroll wheel to edit the

value by the resolution of the
selected digit.

Cursor

3. Repeat the steps above for all the relevant

digits.

4. Press the Enter key to confirm the

edit.

Enter

Note

By default the cursor starts at the lowest power
digit.

52

OPERATION

Using the
onscreen
keyboard

The onscreen keyboard is only used in the
Program Mode. The screenshot below is an
example of the onscreen keyboard.

On screen keyboard

Entered characters

Using the
Function Keys

The function keys are quick settings keys, the
function of which depends on the current
menu or operation.

1. Press the function key that corresponds to the

setting directly to its left.

2. The setting or parameter is immediately

executed.

Function keys

APS-7050

AC Power Source

Display

Programmable

Output

: Long Push

Menu Test Preset

V

Local

Off Phase

On Phase

0

1

4

7

2

5

8

3

6

9

V-Limit F-Limit IPK-Limit

F I rms

Cancel

Shift

Range

Enter

Lock

ALM CLR

IPK CLR

Unlock

Surge / Dip

Ramp

TriggerARB

F 1

F2

F3

F4

Corresponding quick

settings

3. Repeat the steps above for all the relevant

digits.

53

APS-7000 Series User Manual

Background

The default settings can be restored from the
Menu key settings. See page 179 for the default
factory settings.

Steps

1. Press the Menu key. The Menu

settings will appear on the
display.

Menu

2. Use the scroll wheel to go to item 10, Default

Setting.

3. Press Enter x2 to restore the default settings.

Default settings

Reset to Default Settings

54

OPERATION

Background

The Menu>System Information setting
displays the serial number and version
number.

Steps

1. Press the Menu key. The Menu

setting will appear on the display.

Menu

2. The system information should now be listed

on the display.

If not, use the scroll wheel to go to item 1,
System Information.

System

Information

View System Version and Serial Number

55

APS-7000 Series User Manual

Background

The LCD Configuration setting sets the
brightness, contrast and saturation level of the
LCD display.

Steps

1. Press the Menu key. The Menu

settings will appear on the
display.

Menu

2. Use the scroll wheel to go to item 9, LCD

Configuration and press Enter.

3. Set the brightness, contrast and saturation.

Contrast(%)

1 ~ 100% (Default=50%)

Brightness(%)

1 ~ 100% (Default=50%)

Saturation(%)

1 ~ 100% (Default=50%)

Exit

4. Press Exit[F4] to exit from the

Ramp Control settings.

Default Settings

5. Press Default[F3] to set all the LCD settings to

50%.

LCD settings

Default

settings

LCD Configuration

56

OPERATION

Background

If the USB Type B interface is to be used for
remote control, the USB driver needs to be
installed.

Note

The USB driver, GW_APS.inf, is located on the
CD Rom that accompanied this user manual.
Alternatively the driver can be downloaded
from the GW Instek website.

For information on the USB interface, see page

154.

Steps

1. Connect the rear panel USB -B port on the

APS-7000 to the PC using a USB Type A to B
cable.

2. Go the Windows Device Manager.

For Windows 7:

Start > Control Panel > Hardware and Sound
> Device Manager

USB Driver Installation

57

APS-7000 Series User Manual

3. The APS-7000 will be located under Other

Devices in the hardware tree. Right-click the
APS-7XXX and choose Update Driver Software.

4. From the hardware wizard choose Browse my

computer driver software.

58

OPERATION

5. Set the file path to the location of the USB

driver, click Next and finish the driver
installation.

6. In APS-7000 will now be located in the Ports

node of the hardware tree in the Windows
Device Manager if the driver installation was
successful.

59

APS-7000 Series User Manual

Background

The Range setting determines the general outlet
voltage range. The ranges available correspond
to common mains output voltage standards.

Steps

1. Press Range to access the Range

menu.

Range

Basic Operation

This section describes the basic operations required to operate the
power supply.

 Setting the Voltage Range → from page 60
 Setting the Voltage Limit → from page 61
 Setting the Output Voltage → from page 62
 Setting the Frequency Limit → page 64
 Setting the Output Frequency → page 65
 Setting the Peak Current Limit → from page 66
 Setting the Current RMS Level → from page 68
 Setting the On/Off Phase → from page 73
 Clearing the Alarm → from page 74
 Setting the Display mode → from page 75
 Panel lock → from page 77
 Turning the Output on/off → from page 78
 Using the remote sense (APS-7200, APS-7300) → from page 79

Before operating the power supply, please see the Getting Started
chapter, page 8.

Setting the Voltage Range

60

OPERATION

2. Set the voltage range with the scroll wheel or

with the F1 ~ F4 soft-keys.

Range

AUTO, 600V(option), 310V, 155V

Soft-keys

AUTO, 600V(option), 310V, 155V

3. Press Enter to confirm the Range setting.

Range setting

Soft-key

settings

F1
F2
F3
F4

Note

If the range is changed from 155V to 600V, the
Irms and IPK values will automatically be changed
to a lower value. If the range is changed from 600V
to 155V, the Irms and IPK values remain the same.

If the voltage range is changed when the output is
on, the output will be automatically turned off.

Background

Setting the voltage limit allows the output
voltage to be set to any level within the voltage
limit (V Limit) range.

Steps

1. Press Shift + V to access the Volt

Limit menu.

Shift

+

V

V-Limit

Setting the Voltage Limit

61

APS-7000 Series User Manual

2. Set the voltage limit with the scroll wheel or

with the F3 ~ F4 soft-keys. The MAX and MIN
soft-keys set the limit to the maximum and
minimum, respectively.

Range

10% of full range ~ full range

Soft-keys

MAX, MIN

3. Press Enter to confirm the voltage limit setting.

Volt Limit

Min/Max

settings
F3
F4

Note

Each voltage range (155V, 310V, 600V) has an
independent voltage limit.
Before change volt limit setting, if ACV setting
value is bigger than desire volt limit value, so that
the volt limit value can't be change.

Background

Before setting the power supply voltage level,
set the voltage range and voltage limit.

Steps

1. Press the V key. The ACV

parameter will be editable.

V

V-Limit

2. Set the voltage with the scroll wheel/keypad

or with the F1 ~ F4 soft-keys.

Setting the Output Voltage

The voltage setting sets the voltage level of the power supply.

62

OPERATION

Range

0 volts ~ full range

Soft-keys

DEF1, DEF2, MAX, MIN

3. Press Enter to confirm the voltage setting.

Preset Settings

The DEF1 and DEF2 preset settings are user
defined settings. By default they are set to 0.00
volts. The MAX and MIN soft-keys set the
voltage to the maximum and minimum,
respectively.

4. Press the V key and set the desired voltage

with the scroll wheel/keypad.

Range

0 volts ~ full scale of voltage range

5. Press and hold the DEF1 or DEF2 soft-key

until “Saved to DEF1/2” is displayed. This
will save the voltage setting to the DEF1 or
DEF2 soft-key.

Note

Trying to set the voltage outside of the voltage
limit/range will result in a voltage setting error
being displayed on the screen.

The voltage level can be set when the output is on.

Example

Voltage setting

Preset voltage

settings

F3
F4

F1
F2

63

APS-7000 Series User Manual

Background

Setting the frequency limit allows the frequency
output to be set to any level within the limit
range.

Steps

1. Press Shift + F to access the Freq

Limit menu.

Shift

+

F

F-Limit

2. Set the frequency limit with the scroll

wheel/keypad or with the F3 ~ F4 soft-keys.
The MAX and MIN soft-keys set the frequency
limit to the maximum and minimum,
respectively.

Range

45.00 ~ 500.0Hz (1000Hz option)

Soft-keys

MAX, MIN

3. Press Enter to confirm the limit setting.

Example

Freq Limit

Min/Max

settings
F3
F4

Note

Before change freq limit setting, if FREQ setting
value is bigger than desire freq limit value, so that
the freq limit value can't be change.

Setting the Frequency Limit

64

OPERATION

Background

Before setting the frequency, set the frequency
limit.

Steps

1. Press the F key. The FREQ

parameter will be editable.

F

F-Limit

2. Set the frequency with the scroll

wheel/keypad or with the F1 ~ F4 soft-keys.

Range

45.00 ~ 500.0Hz (1000Hz option)

Soft-keys

DEF1, DEF2, MAX, MIN

3. Press Enter to confirm the frequency setting.

Preset Settings

The DEF1 and DEF2 preset settings are user
defined settings. By default they are set to

50.00Hz and 60.00Hz, respectively. The MAX
and MIN soft-keys set the frequency to the
maximum and minimum, respectively.

4. Press the F key and set the desired frequency

with the scroll wheel/keypad.

Range

45.00 ~ 500.0Hz (1000Hz option)

5. Press and hold the DEF1 or DEF2 soft-key

until “Saved to DEF1/2” is displayed. This

will save the frequency setting to the DEF1 or
DEF2 soft-key.

Setting the Output Frequency

The frequency setting sets the frequency of the output.

65

APS-7000 Series User Manual

Example

Frequency setting

Preset frequency

settings

F3
F4

F1
F2

Note

Trying to set the frequency outside of the frequency
limit will result in a frequency setting error being
displayed on the screen.

The frequency can be set when the output is on.

Background

Setting the peak current limit sets a limit on the
current that can be sourced by the power
supply.
Once the output current over the setting, the
output will set to off.

Note

When the peak current limit is tripped, an alarm
will sound. Press Shift + 9 to clear the Ipk alarm.

Shift+6 can also clear the Ipk alarm. See page 74
for details.

Steps

1. Press Shift + I rms to access the

Ipeak menu.

Shift

+

I rms

IPK-Limit

Setting the Peak Current Limit

66

OPERATION

2. Set the peak current with the scroll

wheel/keypad or with the F3 ~ F4 soft-keys.
The MAX and MIN soft-keys set the peak
current to the maximum and minimum,
respectively.

Range

10% ~ 100% peak current value. The
peak current value depends on the
selected voltage range.

Soft-keys

MAX, MIN

3. Press Enter to confirm the peak current setting.

Example

Ipeak

Min/Max

settings
F3
F4

Delay Time
Settings

The Delay Time setting essentially defines how
long the measurement of the peak current must
be sustained for before it is recognized. By
default the delay time is turned off.

Load on

Ipk Limit
reached

I Pk Limit Delay

I

Ipk Limit acknowledged,

protection triggered

T

67

APS-7000 Series User Manual

1. Press Shift + I rms and then press DELAY[F2].

2. Set the desired delay time with the scroll

wheel/keypad or with the F3 ~ F4 soft-keys.
The MAX and MIN soft-keys set the delay
time to the maximum and minimum,
respectively.

Range

0(off) ~ 10 seconds

Soft-keys

MAX, MIN

3. Press Enter to confirm the delay time setting.

Example

Delay Time

Min/Max

settings
F3
F4

IPK Measurement
Range Settings

The IPK Range settings allow you to manually set
the peak current measurement range. By default
this setting is set to AUTO.

1. Press Shift + I rms and then press IPK Range[F1].

2. Set the desired range with the scroll wheel.

Range

AUTO, 0.28A, 1.4A, 14A, 70A
(APS-7050, APS-7100)

AUTO, 14A, 140A
(APS-7200, APS-7300)

3. Press Enter to confirm the IPK Range setting.

68

OPERATION

Example

APS-7050 & 7100

APS-7200 & 7300

IPK Range settings

IPK Range settings

Note

When using manual IPK range setting, Irms
measure range as below

Model

RMS Current Measurement

APS-7050
APS-7100

2.00 ~ 70.00mA (0.28A Range)

2.0 ~ 350.0mA (1.4A Range)

0.020 ~ 3.500A (14A Range)

0.02 ~ 17.50A (70A Range)

APS-7200
APS-7300

0.100 ~ 3.500A (14A Range)

0.10 ~ 35.00A (140A Range)

69

APS-7000 Series User Manual

Background

The I rms setting sets the root mean square
current.

Setting the RMS current sets a limit on the
current that can be sourced by the power
supply. Once the output current over the
setting, the output will set to off.

Steps

1. Press I rms to access the I rms

menu.

I rms

Ipk-Limit

2. Set the I rms level with the scroll

wheel/keypad or with the F3 ~ F4 soft-keys.
The MAX and MIN soft-keys set the I rms
level to the maximum and minimum,
respectively.

Range

0.00 ~ full scale A (dependant on
the voltage range)

Soft-keys

MAX, MIN

3. Press Enter to confirm the current setting.

Example

Irms

Min/Max

settings
F3
F4

Setting the Current RMS Level

70

OPERATION

Note

Setting the I rms level to 0.00 will disable OCP and
the OPP protection function is activated. The OPP
is 105% of rating.

Setting the I rms to 0A is dangerous.

I rms Delay Time
Settings

The Delay Time setting defines how long the I
rms measurement must be sustained for before
it is recognized. By default the I rms delay time
is turned off.

Load on

Irms
Limit

reached

Irms Limit Delay

I

Irms Limit

acknowledged,

protection triggered

T

Irms Limt

4. Press I rms and then press DELAY[F2].

5. Set the desired delay time with the scroll

wheel/keypad or with the F3 ~ F4 soft-keys.
The MAX and MIN soft-keys set the delay
time to the maximum and minimum,
respectively.

Range

0(off) ~ 10 seconds

Soft-keys

MAX, MIN

6. Press Enter to confirm the delay time setting.

71

APS-7000 Series User Manual

Example

Delay Time

Min/Max

settings
F3
F4

OC Fold Settings

The over current fold back settings allow the
APS-7000 to work as either a constant voltage
source or a constant current source.

While the unit is sourcing less current than the
Irms current limit, the APS-7000 will act as a
constant voltage source. In this mode, the
voltage level will remain constant while the
current level may vary. This is the normal
operating mode.

When the current level reaches the Irms limit,
the APS-7000 will act as a constant current
source. In this mode the current is constant and
the voltage level varies. When the current
subsides below the Irms limit again, the unit
will again act as a constant voltage source.
When OC Fold is turned off, the APS-7000 will
act as a current limiting power source when the
Irms limit has been reached.

Vrms

setting

ACV

I

Irms limit

Irms

72

OPERATION

Note

OC-FOLD can only be active when the I rms level is
greater than 0.

7. Press I rms and then press OC-FOLD[F1]

toggle the OC-Fold function on or off.

OC-Fold setting

Background

The on phase setting sets the starting phase of
the voltage output. The off phase setting sets
the ending phase of the voltage output.

Steps

1. Press Shift + 7 or Shift + 4

the On Phase or Off
Phase, respectively.

Shift

+

7

On Phase

or

4

Off Phase

2. Set the On Phase or Off Phase setting with the

scroll wheel/keypad or with the F3 ~ F4 soft­keys. The MAX and MIN soft-keys set the
phase to the maximum and minimum,
respectively.

Range

0 ~ 359º

Soft-keys

MAX, MIN

Setting the On/Off Phase

73

3. Press Enter to confirm the phase setting.

Example

On Phase

Min/Max

settings

F3
F4

Off Phase

Alarm Clear

Background

The ALM CLR (Alarm Clear) function will clear
any Over Power, Over Irms, Over Ipeak, Over
Temperature, Output Short alarms and Remote
Sense Error.

Applicable
Alarms

OVER POWER, OVER IRMS, OVER IPEAK,
OVER TEMPERATURE, OUTPUT SHORT,
REMOTE SENSE ERROR.

Steps

1. Press Shift + 6 to clear any alarms.

Shift

+

6

ALM CLR

Example

Alarm message

ALM indicator

APS-7000 Series User Manual

74

OPERATION

Steps

1. Press the Display key.

2. The display mode will toggle each

time the key is pressed.

Display

Standard Mode

Settings Measurements

Configurable

measurements

Hold

measurement

Simple Mode

Measurement Items

Hold

measurement

Configuring the
Standard Mode
Measurements

1. Press the Meas Item1, Item2 or

Item3 soft-key.

Display Modes

The APS-7000 power supply has two display modes. The standard
display mode shows the power supply setup on the left and the 3
configurable measurements on the right. The simple display mode
shows all measurement items available on the APS-7000.

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APS-7000 Series User Manual

2. Use the scroll wheel to select a measurement

item and press Enter to confirm.

Sets first measurement item to Voltage

Hold
Measurement

The Hold function will “hold” the current
measurements on the display. Measurements

won’t be updated on the display until the

function is released.

Press HOLD[F4] to toggle hold on or off.

When APS-7000 rear terminal has detected
reverser current, the display would change as
follow:

Reverse Current
Mode

76

OPERATION

Activate the panel
lock

Press the Lock key to active the
panel lock. “Keys locked” appears
on the display.

A lock icon will appear in the top
corner when the panel keys are
locked.

Lock

Unlock

Disable the panel
lock

Hold the Lock key for ~3 seconds to
disable the panel lock. “Keys
unlocked” will appear on the
display and the padlock icon will
disappear.

Lock

Unlock

(hold)

Example

Message Lock icon

Panel Lock

The panel lock feature prevents settings from being changed
accidentally. When activated, all keys and knobs except the
Lock/Unlock key and the Output key (if active) will be disabled.

If the instrument is remotely controlled via the USB/LAN/RS­232/GPIB interface, the panel lock is automatically enabled. See
page 153 for remote control details.

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APS-7000 Series User Manual

Warning

Both of these outputs are electrically linked. Only one
DUT should be connected to any one of the outputs at
a time. Using both outputs at the same time is not
supported. Using the front and rear outputs are the
same time could cause dangerous operating
conditions. See page 34 for details about using the
output terminals or sockets.

Turn Output On

Press the Output key. The Output
key will light up and ON will be
displayed in the status bar to
indicate that the output is on.

Output

Turn Output Off

Press the Output key. The Output
key light will go out and OFF will
be displayed in the status bar to
indicate that the output is off.

Output

Turning the Output On

When the output is turned on, the DUT can be connected to either
the rear panel output or the front panel output.

78

OPERATION

Warning

Ensure the output is off before handling the
remote sense connectors.

Use sense cables with a voltage rating exceeding
the isolation voltage of the power supply.

Never connect sensing cables when the output is
on. Electric shock or damage to the power supply
could result.

Remote sense
connectors
overview

The remote sense connectors
are located at the rear panel of
the APS-7200 and APS-7300.

Local sense
operation

When using local sense, the sensing terminals
are not used. No compensation of any possible
voltage drop seen on the load cables is
performed. Local sense is only recommended
when the voltage drop is of no consequence. By
default, the power supply is configured for
local sense.

1. Check that the remote sense setting is disabled

(page 93).

Using the remote sense (APS-7200 and APS-7300 only)

The APS-7200 and APS-7300 can be operated using local or remote
voltage sense. By default, the power supply is configured for local
sense.

Local Sense

79

Remote Sense

Remote sense
operation

Remote sense is used to compensate for the
voltage drop seen across load cables due to
resistance inherent in the load cables. The
remote sense function can compensate a
maximum of 10% of the output voltage.

Warning

Ensure the output is off before handling the
remote sense connectors.

Use sense cables with a voltage rating exceeding
the isolation voltage of the power supply.

Never connect sensing cables when the output is
on. Electric shock or damage to the power supply
could result.

1. Configure the remote sense setting to ON

(page 93).

2. Connect the Neutral terminal of the remote

sense terminal block to the Neutral terminal of
the load.

3. Connect the Live terminal of the remote sense

terminal block to the Live terminal of the load.

APS-7000 Series User Manual

80

OPERATION

Connection
example

OUTPUT
terminal block

Sensing
terminal
block

Load cables

Sensing
cables

Sensing
points

Load

APS-7200 / 7300

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APS-7000 Series User Manual

Parameter
Settings

Mode

Auto: When the output is on, this
mode will automatically generate a
trigger at 0º to keep the surge or dip
event repeatedly on site.

Manual: When the output is on, this
mode will wait for the TRIG[F4] soft­key to be pressed before starting the
surge or dip event on site.

OFF: Disables surge/dip control.

Note

The magnitude of the surge/dip part of the resultant
waveform depends on the surge/dip ACV setting level.

Advanced Settings

 Surge/Dip Control → from page 82
 Ramp Control → from page 85

Surge/Dip Control

Surge and dip control allows the power supply to source artificial
surges or dips in voltage to a DUT. The surge/dip control feature
provides a fast method to generate a surge/dip voltage event on a
nominal voltage.

There have 4 parameters for configuring this feature: Mode
selection (Mode), surge/dip voltage (ACV), the start time (T1) and
testing duration (T2) of the surge/dip voltage period. The nominal
voltage and frequency settings are based on the Basic Operation
section.

82

OPERATION

Triggering
Example:

Site selection: The surge/dip site is
selected as shown below.

Trigger (0º for Auto)

Dip/Surge site

T2T1

ACV

100mS

ACV

Sets the ACV surge/dip level from
the 0V level.

T1

Sets the T1 time.

Range: 0~22ms(Auto Mode)

Range: 0~99ms(Manual Mode)

T2

Sets the width of the surge/dip.

Range: 0~22ms(Auto Mode)

Range: 0~99ms(Manual Mode)

100mS

Fixed 100mS delay after triggering.

Steps

1. Press the Menu key. The Menu

setting will appear on the display.

Menu

2. Use the scroll wheel to go to item 2, Surge/Dip

Control and press Enter. Alternatively, use the

short-cut key shift+8.

3. Go to the Mode setting using the scroll wheel

and press Enter. Select the desired mode and
press Enter again to confirm.

The Manual mode will allow you to manually
trigger the surge/dip site. The Automatic
setting will automatically trigger the surge/dip
site.

Mode

Manual, Auto, OFF

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APS-7000 Series User Manual

4. Set the remaining parameters.

Note: these parameters are not visible when
MODE is set to OFF.

Remaining parameters

ACV, T1, T2

Exit

5. Press Exit[F4] to exit from the

Surge/Dip Control settings.

6. After exiting the menu, the

surge/dip control icon will
appear in the status bar.

Triggering the
Manual
Surge/Dip Site

For the manual mode, the surge/dip site is
determined by a manual trigger.

1. Configure the nominal voltage

and frequency settings. See the
Basic Operation chapter for
details.

Page: 62, 64

2. Turn the output on. The nominal

settings above will be output.

Page 78

3. Press Shift to arm the trigger.

Press TRIG[F4] to generate the
trigger manually via the front
panel.

Shift

Or,
Alternatively, pulse the Trigger In
pin on the J1 connector high to
generate the trigger.

OR
Page 150

Note

The TRIG soft-key is only available when the surge/dip
control is set to

Manual

.

84

OPERATION

Parameter
Settings

Time

The Time setting allows you to set
the ramp time as ms/Vrms.

Tup = ramp up time/1Vrms
Tdn = ramp down time/1Vrms

1Vrms 1Vrms

Tup Tdn

Voltage

The Voltage setting allows you to set
the ramp time as Vrms/ms.

Vup = voltage up/1ms
Vdn = voltage down/1ms

Vup Vdn

1ms 1ms

Steps

1. Press the Menu key. The Menu

setting will appear on the display.

Menu

2. Use the scroll wheel to go to item 3, Ramp

Control and press Enter. Alternatively, use the

short-cut key shift+5.

Ramp Control

The Ramp Control function controls how fast the voltage level
ramps up and down. This function allows you to ramp the voltage
as a unit of time or as a unit of voltage.

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APS-7000 Series User Manual

3. Go to the Mode setting using the scroll wheel

and press Enter. Select either Voltage or Time
and press Enter again to confirm.

Mode

Voltage, Time

4. For Voltage mode, set Vup and Vdn.

Vup

0.01 ~ 99.99Vrms

Vdn

0.01 ~ 99.99Vrms

5. For Time mode, set Tup and Tdn.

Tup

0.1 ~ 999.9ms

Tdn

0.1 ~ 999.9ms

Exit

6. Press Exit[F4] to exit from the

Ramp Control settings.

7. Upon exiting the ramp icon will

appear in the status bar.

86

OPERATION

Example

Settings: Mode=Time, Tup=1 msec, VAC=100V,
Freq=50Hz, Ramp output=on.

Ramp up Tup=1msec

Example:

Settings: Mode=Voltage, Vdn=2Vrms, VAC=100V,
Freq=50Hz, Ramp output=off.

Ramp down Vdn =2Vrms

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APS-7000 Series User Manual

Output on

Ipeak Hold time

I

Begin the peak current

measurement

T

Steps

1. Press the Menu key. The Menu

setting will appear on the display.

Menu

2. Use the scroll wheel to go to item 4, MISC

Configuration and press Enter.

3. Go to the T Ipeak, hold(msec) setting using the

scroll wheel and press Enter. Set the time and
press Enter again to confirm.

T Ipeak

1 ~ 60,000 ms

Miscellaneous

The Miscellaneous menu contains miscellaneous parameter settings.

 T Ipeak, hold → from page 88
 Power ON Output → from page 90
 Buzzer → from page 91
 SCPI Emulation → from page 92
 Remote Sense → from page 93 (for APS-7200 and APS-7300 only).

T Ipeak, hold

The T Ipeak, hold function sets the hold time for the peak current
measurement. After the output is turned on, the APS-7000 will
delay starting the peak current measurement by this hold time.

88

OPERATION

Exit

4. Press Exit[F4] to exit from the

MISC Configuration settings.

Example

Settings

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APS-7000 Series User Manual

Steps

1. Press the Menu key. The Menu

setting will appear on the display.

Menu

2. Use the scroll wheel to go to item 4, MISC

Configuration and press Enter.

3. Go to the Power ON Output setting using the

scroll wheel and press Enter. Select a setting
and press Enter to confirm.

ON

Set Output ON.

OFF

Set Output OFF.

SEQ

Execute the sequence that was
loaded before the unit was last
turned off.

SIM

Execute the simulation that was
loaded before the unit was last
turned off.

PROG

Execute the program that was
loaded before the unit was last
turned off.

Exit

4. Press Exit[F4] to exit from the

MISC Configuration settings.

Power ON Output

The Power ON Output setting allows you to have the output turn
on automatically after startup. The settings that are loaded are the
last settings that were present in the standard mode before the unit
was turned off last.

90

OPERATION

Example

Settings

Steps

1. Press the Menu key. The Menu

setting will appear on the display.

Menu

2. Use the scroll wheel to go to item 4, MISC

Configuration and press Enter.

3. Go to the Buzzer setting using the scroll wheel

and press Enter. Turn the setting on or off and
press Enter again to confirm.

Buzzer

ON, OFF

Exit

4. Press Exit[F4] to exit from the

MISC Configuration settings.

Example

Settings

Buzzer

The Buzzer setting turns the buzzer sound on or off for key presses
and alarms.

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APS-7000 Series User Manual

Steps

1. Press the Menu key. The Menu

setting will appear on the display.

Menu

2. Use the scroll wheel to go to item 4, MISC

Configuration and press Enter.

3. Go to the SCPI Emulation setting using the

scroll wheel and press Enter. Choose the SCPI
emulation mode and press Enter again to
confirm.

SCPI Emulation

GW, EXTECH, N/A

Exit

4. Press Exit[F4] to exit from the

MISC Configuration settings.

Example

Settings

SCPI Emulation

The SCPI Emulation setting supports both GW Instek as well as
EXTECH SCPI remote commands. When set to EXTECH, the SCPI
Emulation setting allows the APS-7000 to be a drop-in replacement
for the EXTECH 6700 series by emulating the remote commands of
the EXTECH units.

92

OPERATION

Note

The remote sense function can compensate a
maximum of 10% of the output voltage. The
maximum output voltage when compensation is
used is limited by the rated voltage.

Steps

1. Press the Menu key. The Menu

setting will appear on the display.

Menu

2. Use the scroll wheel to go to item 4, MISC

Configuration and press Enter.

3. Go to the Remote Sense setting using the scroll

wheel and press Enter. Select the unit and
press Enter to confirm.

Remote Sense

ON, OFF

Exit

4. Press Exit[F4] to exit from the

MISC Configuration settings.

Example

Settings

Remote Sense (APS-7200 and APS-7300 only)

The remote sense function detects the output voltage at the sensing
input terminal. This function compensates for voltage drops across
the load cables when the load is connected to the APS-7200 or APS­7300 over a long distance.

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APS-7000 Series User Manual

Display

When the remote sense function is on, the
displayed voltage value is the voltage measured at

the sense terminal and the symbol “SV” is

displayed next to the voltage reading on the
standard and simple mode display.

Display

Warning

Before connecting the remote sense cables, turn off
the output and peripherals. Please see page 79 for
more information on the remote sense cabling
instructions.

If the remote sense wires are loose or falling, the
display would show a message as below.

94

OPERATION

Pin Assignment
(APS-7050 and
APS-7100)

Trigger Out

Trigger In Out On / Off

COM

J1

Pin Assignment
(APS-7200 and
APS-7300)

Trigger Out

Trigger In

Out On / Off

COM

J1

Note

The following trigger control settings are not
applicable when in the Simulation test mode or the
Sequence test mode.

Steps

1. Press Shift + 2 to access the

Trigger Control menu.

Shift

+

2

Trigger

Trigger

The trigger settings are used to turn the output on or off or to set
the behavior of the Trigger In and Trigger Out pins of the J1
Connector. The trigger can also be used in conjunction with the
Sequence mode, Simulation mode and Surge/Dip mode. See page
150 for further details.

Trigger Control Settings

The trigger control menu sets both the trigger in and the trigger out
behavior of the J1 connector.

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APS-7000 Series User Manual

2. The trigger control settings appear. The

settings are divided into Input Pin and Output
Pin.

Trigger input

settings

Exit

Trigger output

settings

Trigger Input Pin

1. The Input Pin settings configure what action is

taken when the Trigger In pin on the J1
connector is high.

2. Go to the Action setting using the scroll wheel

and press Enter. Choose what will happen
when the Trigger In pin is pulsed high(+5V)
and then press Enter to confirm.

None

No action is taken. Remote trigger
commands are accepted.

Output

Turns the output on or off when
triggered.

Setting

Sets a user-defined voltage and
frequency setting when triggered.

Preset

Loads a preset setting when
triggered.

SurgeDip

Triggers the surge/dip control.

3. Go to the Width setting and set the minimum

pulse width to recognize the trigger input
pulse.

0 Minimum pulse width (5ms)

1~ 60ms

1~ 60ms pulse width.

96

OPERATION

4. If Output was chosen, set output status.

Status

ON, OFF

5. If Setting was chosen, Set Vset and Fset.

Vset

0 ~ full scale voltage (dependant on
the chosen range; 600V optional)

Fset

45.00 ~ 500.0 Hz (1000Hz optional)

6. If Preset was chosen, choose which preset

setting should be loaded when the Trigger
Input is set to high(+5V).

Memory

0 ~ 9

Trigger Output
Pin

7. Go to the Source setting to choose what

function or test mode will be able to the trigger
the output pin to pulse high.

None

No source is able to use the trigger
output. Remote trigger commands
are accepted.

Output

The trigger output pin is activated
when the output is turned on or off.

Setting

When the settings change the
trigger output pin is activated.

Preset

When a preset is loaded or saved,
the trigger output pin is activated.

All

The trigger output pin is activated
when any of the settings, presets or
the output are changed.

8. Go to Width to set how long the trigger output

pin is pulsed high for.

Width

1 ~ 60ms

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APS-7000 Series User Manual

0ms: Stays high/low.

9. If Width, above, was set 0ms, you can choose

the output pin polarity with the Level
parameter. This setting will pull the output pin
high or low when source condition is true.
This setting is not available when Width is set
to 1~60ms.

Level

HI (≥+2V), LO(≤+0.8V)

Exit

10. Press Exit[F4] to exit from the

Trigger Control settings.

98

OPERATION

[1] Remote
Control
Commands

The following remote control commands are
applicable for the trigger input or output. See the
programming manual for usage details.

*TRG
:INITiate[:IMMediate]:NAME
:INITiate[:IMMediate][:TRANsient]
:MEMory:SAV
:MEMory:RCL
:MEMory:TRIGgered
:MEMory:TRIGgered?
:OUTPut[:STATe]:TRIGgered
:OUTPut[:STATe]:TRIGgered?
:SYSTem:CONFigure:TRIGger:INPut:MODE
:SYSTem:CONFigure:TRIGger:INPut:MODE?
:SYSTem:CONFigure:TRIGger:INPut:SOURce
:SYSTem:CONFigure:TRIGger:INPut:SOURce?
:SYSTem:CONFigure:TRIGger:OUTPut:MODE
:SYSTem:CONFigure:TRIGger:OUTPut:MODE?
:SYSTem:CONFigure:TRIGger:OUTPut:SOURce
:TRIGger:OUTPut:SOURce
:TRIGger:OUTPut:SOURce?
:TRIGger:OUTPut[:IMMediate]
:TRIGger:MEMory:SOURce
:TRIGger:MEMory:SOURce?
:TRIGger:MEMory[:IMMediate]
:TRIGger[:TRANsient]:SOURce
:TRIGger[:TRANsient]:SOURce?
:TRIGger[:TRANsient][:IMMediate]
[:SOURce]:FREQuency:TRIGgered
[:SOURce]:FREQuency:TRIGgered?
[:SOURce]:VOLTage[:LEVel]:TRIGgered[:AMPLitude]
[:SOURce]:VOLTage[:LEVel]:TRIGgered[:AMPLitude]?

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APS-7000 Series User Manual

Steps

1. Press Preset and then hold

a number key (0~9) to save
the present settings to the
corresponding memory
number.

Preset

+

0

~

9

(hold)
Presets

M0 ~ M9

2. Press the Preset key again to exit from the

preset mode.

Example

For example, pressing Preset & holding 1 will
save the present settings to memory slot 1
(saved to M1).

Note

The preset key will become green when active. A
beep will be heard (Buzzer set to ON) and a
message will displayed when the settings are
saved.

Preset Settings

 Save Presets to Local Memory → from page 100
 Recall Presets to Local Memory → from page 101
 Manage Preset Settings → from page 102

Save Preset Settings to Local Memory

Up to 10 preset settings can be saved to internal memory.

100